The gunsmith's name is Bob Munck
The Company name is Showgun
He is out of Florida, He just got rid of the cheap screws in the "R9" and replaced and re tapped with heavy duty s/s torx screws that will not gall...........He has done many guns for me in the past and they have all functioned much like a jeweled watch, even my little keltec 32,,,,,,,,,,,He is about to install sights and guide rods and springs and polish and throat the ramp on my new glock 34...he can be reached at
954-647-2926.........he does not pick up phone if he does not recognize the number so leave him a message and say his "dinky Dau Bro Dan" gave you his number......Regard.s...and let me know what happens.ps.he specializes in parts and customs on colts.....................